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A Simple and Scalable Fabrication Method for Organic Electronic Devices on Textiles

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Thermo-Fluorescent Bactericidal Quantum Dots Based Smart Multifunctional Textiles via Molecular Surface Engineering

Poushali Das¹, Sayan Ganguly², Parham Khoshbakht Marvi¹

¹School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada.

Advanced Healthcare Materials

|March 16, 2026

Summary

Researchers developed smart textiles with carbon dots (CDs) and polymers, creating functional fabrics that are thermo-fluorescent, UV-protective, and antibacterial for advanced wearable systems.

Keywords:

antibacterial carbon dots fluorescence functional smart textile thermo‐optical system

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Area of Science:

Materials Science and Engineering
Nanotechnology
Textile Chemistry

Background:

Next-generation wearable systems require functional textiles with optical activity, environmental responsiveness, and structural adaptability.
Existing smart textiles often lack multifunctionality, durability, or specific properties like thermo-responsiveness and UV protection.

Purpose of the Study:

To develop a versatile strategy for fabricating advanced smart textiles using carbon dot (CD)/polymer nanocomposite coatings.
To impart thermo-fluorescent, UV-protective, and antibacterial properties to textiles for enhanced wearable applications.

Main Methods:

Synthesized hydrothermally-prepared carbon dots (CDs) exhibiting excitation-dependent emission and excellent photostability.
Fabricated nanocomposite coatings using a PVA/quaternized chitosan matrix with CDs, applied via dip-and-dry and spray methods.
Modified textiles with hexadecyltrimethoxysilane for durable hydrophobicity and integrated with digital light processing printing.

Main Results:

Coated textiles demonstrated thermo-responsive fluorescence (5-100°C), with enhanced emission below 37°C and quenching above.
Achieved strong antibacterial activity against E. coli and B. subtilis, notable antioxidant performance, and >95% relative increment in UVB blocking.
The functional fabrics maintained fluorescence under mechanical deformation and showed coating-cycle-dependent emission, withstanding repeated use.

Conclusions:

The developed carbon dot/polymer nanocomposite coatings provide a multifunctional platform for advanced smart textile applications.
The strategy enables the creation of durable, responsive, and protective textiles suitable for next-generation wearable systems.
Integration with digital light processing printing allows for complex hybrid architectures without compromising textile functionality.